mirror of
https://github.com/rust-lang/rust
synced 2024-10-14 12:33:57 +00:00
26 lines
362 B
Rust
26 lines
362 B
Rust
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//@ compile-flags: -O
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#![crate_type = "lib"]
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// CHECK-LABEL: @test
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// CHECK-NEXT: start:
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// CHECK-NEXT: tail call void @ext_fn0()
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#[no_mangle]
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pub fn test() {
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test_inner(Some(inner0));
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}
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fn test_inner(f_maybe: Option<fn()>) {
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if let Some(f) = f_maybe {
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f();
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}
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}
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fn inner0() {
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unsafe { ext_fn0() };
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}
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extern "C" {
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fn ext_fn0();
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}
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